Compress PNG

Best tool to compress PNG images online while preserving image quality

Or drop files here. Max file size 1GB. Sign up for more

How to Compress a PNG?

  1. Click the “Choose Files” button to upload your PNG files.
  2. Click the "Compress Now" button to start compressing.
  3. Once the status change to "Done" click the "Download PNG" button.

Best Quality

Compress PNG images by up to 80% while preserving image quality and transparency.

Advanced PNG Compression

Use our Advanced Settings (optional) to adjust various settings such as compression level and speed.

Free & Secure

Our Compress PNG tool is free and works on any web browser. Plus, all files are protected with 256 bit SSL encryption and deleted automatically after 2 hours. Your file security and privacy are guaranteed.


How does it work?

Our PNG compressor converts 32-bit truecolor PNGs with alpha channel to palette PNG (8-bit indexed color image). This stripping of colors by combining similar colors, while lossy, is often not noticeable to the human eye [1]. We also strip image metadata to further reduce PNG file size. Additionally, you can also resize your PNGs to further reduce their file size [2].

Does FreeConvert provide other file compressors?

Yes. Check out Compress JPEGVideo CompressorGIF CompressorPDF Compressor, and Image Compressor. Here is a great free image resizer tool.


[1] - Even Faster Web Sites: Performance Best Practices for Web Developers

[2] - Image Resizer